EP0056546A3 - Digitales adaptives Fir.-Filter mit einer grossen Anzahl von Koeffizienten - Google Patents

Digitales adaptives Fir.-Filter mit einer grossen Anzahl von Koeffizienten Download PDF

Info

Publication number: EP0056546A3
Authority: EP; European Patent Office
Prior art keywords: response; coefficients; large number; filter; finite impulse
Prior art date: 1981-01-13
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP81402035A

Other languages

English (en)

French (fr)

Other versions

EP0056546A2 (de

Inventor

Otakar A. Horna

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Comsat Corp

Original Assignee

Comsat Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1981-01-13

Filing date

1981-12-21

Publication date

1982-08-11

1981-12-21 Application filed by Comsat Corp filed Critical Comsat Corp

1982-07-28 Publication of EP0056546A2 publication Critical patent/EP0056546A2/de

1982-08-11 Publication of EP0056546A3 publication Critical patent/EP0056546A3/de

Status Withdrawn legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters

Landscapes

Filters That Use Time-Delay Elements (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

EP81402035A 1981-01-13 1981-12-21 Digitales adaptives Fir.-Filter mit einer grossen Anzahl von Koeffizienten Withdrawn EP0056546A3 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US224853		1981-01-13
US06/224,853 US4377793A (en)	1981-01-13	1981-01-13	Digital adaptive finite impulse response filter with large number of coefficients

Publications (2)

Publication Number	Publication Date
EP0056546A2 EP0056546A2 (de)	1982-07-28
EP0056546A3 true EP0056546A3 (de)	1982-08-11

Family

ID=22842511

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP81402035A Withdrawn EP0056546A3 (de)	1981-01-13	1981-12-21	Digitales adaptives Fir.-Filter mit einer grossen Anzahl von Koeffizienten

Country Status (6)

Country	Link
US (1)	US4377793A (de)
EP (1)	EP0056546A3 (de)
JP (1)	JPS57137959A (de)
AU (1)	AU7880081A (de)
BR (1)	BR8200136A (de)
CA (1)	CA1187563A (de)

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DE3137679A1 (de) *	1981-09-22	1983-04-07	Siemens AG, 1000 Berlin und 8000 München	Anordnung zur uebertragung von sprache nach dem kanalvocoderprinzip
CA1186764A (en) *	1982-06-23	1985-05-07	Akira Kanemasa	Echo canceler
US4554858A (en) *	1982-08-13	1985-11-26	Nippon Gakki Seizo Kabushiki Kaisha	Digital filter for an electronic musical instrument
JPS5952911A (ja) *	1982-09-20	1984-03-27	Nec Corp	トランスバ−サル・フイルタ
US4494214A (en) *	1983-02-03	1985-01-15	Rca Corporation	Apparatus for generating scaled weighting coefficients for sampled data filters
US4554417A (en) *	1983-02-04	1985-11-19	At&T Bell Laboratories	Tandem adaptive echo canceler arrangement
US4574166A (en) *	1983-02-04	1986-03-04	At&T Bell Laboratories	Tandem adaptive filter arrangement
FR2541837A1 (fr) *	1983-02-25	1984-08-31	Trt Telecom Radio Electr	Procede de reduction du temps de convergence d'un annuleur d'echo et dispositif pour mettre en oeuvre ce procede
DE3345284A1 (de) *	1983-12-14	1985-06-27	Siemens AG, 1000 Berlin und 8000 München	Verfahren und schaltungsanordnung zur digitalsignalverarbeitung nach art eines vorzugsweise adaptiven transversalfilters
US4641259A (en) *	1984-01-23	1987-02-03	The Board Of Trustees Of The Leland Stanford Junior University	Adaptive signal processing array with suppession of coherent and non-coherent interferring signals
US4581747A (en) *	1984-03-05	1986-04-08	At&T Bell Laboratories	Arrangement for equalizing the variable attenuation of a signal on a communication line
IT1199170B (it) *	1984-07-27	1988-12-30	Selenia Ind Elettroniche	Elaboratore digitale di segnali radar in grado di effettuare la cancellazione adattiva del clutter mediante stimatore parametrico
US4811261A (en) *	1985-03-04	1989-03-07	Oki Electric Industry Co., Ltd.	Adaptive digital filter for determining a transfer equation of an unknown system
JPH0720070B2 (ja) *	1985-08-14	1995-03-06	株式会社日立製作所	デイジタル平衡回路を有するｐｃｍ符号復号器
DE3605926A1 (de) *	1986-02-25	1987-08-27	Standard Elektrik Lorenz Ag	Filteranordnung
US4783660A (en) *	1986-09-29	1988-11-08	Signatron, Inc.	Signal source distortion compensator
US4914600A (en) *	1987-06-05	1990-04-03	Gruman Aerospace Corporation	Programmable frequency identifier circuit
JPH0344218A (ja) *	1989-07-12	1991-02-26	Fujitsu Ltd	適応形エコーキャンセラ
GB2237483A (en) *	1989-10-11	1991-05-01	Plessey Co Plc	An adaptive fir filter having restricted coefficient ranges
US5122788A (en) *	1989-10-27	1992-06-16	Maher A. Sid-Ahmed	Method and an apparatus for 2-D filtering a raster scanned image in real-time
JP2573389B2 (ja) *	1990-03-23	1997-01-22	晴夫浜田	電子消音方法及び装置
US5243661A (en) *	1990-04-09	1993-09-07	Sony Corporation	Microphone apparatus
US5157653A (en) *	1990-08-03	1992-10-20	Coherent Communications Systems Corp.	Residual echo elimination with proportionate noise injection
US5272656A (en) *	1990-09-21	1993-12-21	Cambridge Signal Technologies, Inc.	System and method of producing adaptive FIR digital filter with non-linear frequency resolution
US6847611B1 (en) *	1990-12-10	2005-01-25	At&T Corp.	Traffic management for frame relay switched data service
US5168459A (en) *	1991-01-03	1992-12-01	Hewlett-Packard Company	Adaptive filter using continuous cross-correlation
US5252819A (en) *	1991-11-13	1993-10-12	The Boeing Company	Scanning sensor processing apparatus and method for providing correction of output signal distortion
US6771617B1 (en) *	1993-06-17	2004-08-03	Gilat Satellite Networks, Ltd.	Frame relay protocol-based multiplex switching scheme for satellite mesh network
US5434850A (en)	1993-06-17	1995-07-18	Skydata Corporation	Frame relay protocol-based multiplex switching scheme for satellite
JPH0784993A (ja) *	1993-09-17	1995-03-31	Fujitsu Ltd	信号抑圧装置
US6633894B1 (en) *	1997-05-08	2003-10-14	Legerity Inc.	Signal processing arrangement including variable length adaptive filter and method therefor
US6081524A (en)	1997-07-03	2000-06-27	At&T Corp.	Frame relay switched data service
US6658648B1 (en) *	1997-09-16	2003-12-02	Microsoft Corporation	Method and system for controlling the improving of a program layout
US6028929A (en) *	1997-11-14	2000-02-22	Tellabs Operations, Inc.	Echo canceller employing dual-H architecture having improved non-linear echo path detection
US7171003B1 (en) *	2000-10-19	2007-01-30	Lear Corporation	Robust and reliable acoustic echo and noise cancellation system for cabin communication
US7386142B2 (en)	2004-05-27	2008-06-10	Starkey Laboratories, Inc.	Method and apparatus for a hearing assistance system with adaptive bulk delay
EP2080408B1 (de) *	2006-10-23	2012-08-15	Starkey Laboratories, Inc.	Mitnahmevermeidung mit einem autoregressiven filter
US8571244B2 (en)	2008-03-25	2013-10-29	Starkey Laboratories, Inc.	Apparatus and method for dynamic detection and attenuation of periodic acoustic feedback
US8369817B2 (en) *	2008-08-22	2013-02-05	Stmicroelectronics S.A.	Analog FIR filter
US8942398B2 (en)	2010-04-13	2015-01-27	Starkey Laboratories, Inc.	Methods and apparatus for early audio feedback cancellation for hearing assistance devices
US9654885B2 (en)	2010-04-13	2017-05-16	Starkey Laboratories, Inc.	Methods and apparatus for allocating feedback cancellation resources for hearing assistance devices
US8917891B2 (en)	2010-04-13	2014-12-23	Starkey Laboratories, Inc.	Methods and apparatus for allocating feedback cancellation resources for hearing assistance devices
DE102014104463B4 (de) *	2014-03-28	2017-09-21	Intel IP Corporation	Verfahren zum Bereitstellen eines Filters und Filter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3732410A (en) *	1969-12-22	1973-05-08	Postmaster Department Res Labo	Self adaptive filter and control circuit therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3639848A (en) *	1970-02-20	1972-02-01	Electronic Communications	Transverse digital filter
NL173807C (nl) *	1974-12-18	1983-10-03	Philips Nv	Niet-recursief, digitaal filter met verlaagde uitgangsbemonsterfrequentie.
US3980873A (en) *	1975-06-27	1976-09-14	Aeronutronic Ford Corporation	Digital convolutional filter
DE2841832A1 (de) *	1978-09-26	1980-04-03	Siemens Ag	Verfahren und schaltungsanordnung zum betrieb von nach dem charge-coupled-device (ccd)-prinzip aufgebauten rekursiven filterschaltungen oder analogspeicherschaltungen

1981
- 1981-01-13 US US06/224,853 patent/US4377793A/en not_active Expired - Fee Related
- 1981-12-21 EP EP81402035A patent/EP0056546A3/de not_active Withdrawn
- 1981-12-23 AU AU78800/81A patent/AU7880081A/en not_active Abandoned
- 1981-12-24 CA CA000393197A patent/CA1187563A/en not_active Expired
- 1981-12-24 JP JP56208268A patent/JPS57137959A/ja active Pending
1982
- 1982-01-12 BR BR8200136A patent/BR8200136A/pt unknown

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3732410A (en) *	1969-12-22	1973-05-08	Postmaster Department Res Labo	Self adaptive filter and control circuit therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Comsat Technical Review, Vol. 8, No. 2, Fall 1978, pages 331-351, Washington (USA) O.A. HORNA: "Identification Algorithms for Adaptive Filters". the whole document *

Also Published As

Publication number	Publication date
AU7880081A (en)	1982-07-22
CA1187563A (en)	1985-05-21
US4377793A (en)	1983-03-22
JPS57137959A (en)	1982-08-25
EP0056546A2 (de)	1982-07-28
BR8200136A (pt)	1982-11-03

Publication	Publication Date	Title
EP0056546A3 (de)	1982-08-11	Digitales adaptives Fir.-Filter mit einer grossen Anzahl von Koeffizienten
JPS5760773A (en)	1982-04-12	Finite impulse response filter
GB2181318B (en)	1989-12-28	Two-dimensional finite impulse response filters
DE3166715D1 (en)	1984-11-22	Interpolating recursive digital filter using distributed arithmetic
AU560134B2 (en)	1987-04-02	Baseband-controlled passband equalizer
GB2081047B (en)	1985-03-06	Recursive low pass digital filter
AU583566B2 (en)	1989-05-04	Digital delay filter
AU570668B2 (en)	1988-03-24	Training an echo cancelling filter
YU253581A (en)	1983-10-31	Digital automatic equalizer for the synthesis of recursive filters
SE9301666D0 (sv)	1993-05-14	Metod och ekoslaeckare foer ekoutslaeckning med ett antal kaskadkopplade adaptiva filter
UA6011A1 (uk)	1994-12-29	Спосіб обробки цифрових сигналів по типу переважно адаптивного трансверсального фільтра і пристрій для його впровадження
EP0034241A3 (en)	1982-04-21	Non-recursive digital filter
EP0114078A3 (en)	1987-12-02	An adaptive digital filter
AU533476B2 (en)	1983-11-24	Input-weighted transversal filter tv chost eliminator
PT79115B (en)	1986-06-03	Digital deghosting system
AU546432B2 (en)	1985-08-29	Saw bandpass transversal filter
CA2051858A1 (en)	1992-03-21	Digital filter
AU2453084A (en)	1984-08-30	Variable group delay equalizer
IT7925865A0 (it)	1979-09-20	Filtro trasversale per segnali digitali.
SE467436B (sv)	1992-07-13	Foerfarande och anordning foer att minska den erforderliga storleken hos ett digitalt filter i samband med ekoeliminering i en abonnentlinjekrets
EP0177239A3 (de)	1987-06-03	Adaptiver Filter mit Signalwegkompensation
IT8122609A0 (it)	1981-06-26	Disposizione per regolare un filtro di bilanciamento digitale adattivo incluso in un gruppo di abbonato.
JPS5757023A (en)	1982-04-06	Transversal equalizer
EP0057751A3 (en)	1984-05-16	Ctd transversal filter
AU2463184A (en)	1985-01-17	Backflushing filter

Legal Events

Date	Code	Title	Description
1982-05-29	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1982-06-08	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1982-07-28	AK	Designated contracting states	Designated state(s): BE DE FR GB IT NL SE
1982-08-11	AK	Designated contracting states	Designated state(s): BE DE FR GB IT NL SE
1983-04-13	17P	Request for examination filed	Effective date: 19830204
1984-03-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN
1984-05-30	18W	Application withdrawn	Withdrawal date: 19840317
2007-08-08	RIN1	Information on inventor provided before grant (corrected)	Inventor name: HORNA, OTAKAR A.